Evaluate
-\frac{x^{2}}{4}+20
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-\frac{x^{2}}{4}+20
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20-\frac{1}{4}x^{2}
Use the distributive property to multiply \frac{1}{4} by 80-x^{2}.
20-\frac{1}{4}x^{2}
Use the distributive property to multiply \frac{1}{4} by 80-x^{2}.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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Matrix
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Simultaneous equation
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Differentiation
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Limits
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